Improved introduction of getter and setter (#22337)
Mentioned the principle of data encapsulationpull/34314/head
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@ -3,7 +3,7 @@ title: Getters & Setters
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# Getters & Setters
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Getters and Setters are used to effectively protect your data, particularly when creating classes. For each instance variable, a getter method returns its value while a setter method sets or updates its value. Getters and setters are also known as accessors and mutators, respectively.
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Getters and Setters are used to implement the principle of encapsulation and so the instance variable can be accessed only by its getter and setter methods. For each instance variable, a getter method returns its value while a setter method sets or updates its value. Getters and setters are also known as accessors and mutators, respectively.
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By convention, getters start with `get`, followed by the variable name, with the first letter of the variable name capitalized. Setters start with `set`, followed by the variable name, with the first letter of the variable name capitalized.
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